該博文在上一博文地圖與定位之地圖、大頭針的基礎上完成。

在MyAnnotation.h 中增加屬性

#import <Foundation/Foundation.h> #import <MapKit/MapKit.h> //MKAnnotation是一個協議 ,添加大頭針久需要實現該協議 //coordinate 屬性是必須的,所以需要實現該屬性 @interface MyAnnotation : NSObject<MKAnnotation> @property(nonatomic,strong)UIImage *image; -(id)initWithCoordinate:(CLLocationCoordinate2D)coordinate title:(NSString *)title subtitle:(NSString *)subtitle; @end
?在ViewController.m中

// // ViewController.m // MapView // // Created by City--Online on 15/4/17. // Copyright (c) 2015年 CYW. All rights reserved. //#import "ViewController.h" #import <CoreLocation/CoreLocation.h> #import <MapKit/MapKit.h> #import "MyAnnotation.h" @interface ViewController ()<CLLocationManagerDelegate,MKMapViewDelegate> @property(nonatomic,strong)MKMapView *mapView; @property(nonatomic,strong)CLLocationManager *locationManager; @end@implementation ViewController- (void)viewDidLoad {[super viewDidLoad];_locationManager=[[CLLocationManager alloc]init];BOOL enable=[CLLocationManager locationServicesEnabled];NSLog(@"%d",[CLLocationManager authorizationStatus]);if (!enable) {NSLog(@"用戶未開啟定位服務,無法定位");return;}else if ([CLLocationManager authorizationStatus]<3){[_locationManager requestWhenInUseAuthorization];}CLLocationDistance distance=10.0;_locationManager.distanceFilter=distance;_locationManager.delegate=self;_locationManager.desiredAccuracy=kCLLocationAccuracyBest;[_locationManager startUpdatingLocation];self.mapView=[[MKMapView alloc]initWithFrame:CGRectMake(0, 0, self.view.frame.size.width, self.view.frame.size.height)];//地圖類型 // typedef NS_ENUM(NSUInteger, MKMapType) { // MKMapTypeStandard = 0, //標準地圖 // MKMapTypeSatellite, //衛星地圖 // MKMapTypeHybrid //混合地圖 // }self.mapView.mapType=MKMapTypeStandard;//是否定位當前位置 否顯示當前位置self.mapView.showsUserLocation=YES;//代理設置self.mapView.delegate=self;// typedef struct { // CLLocationCoordinate2D center; // MKCoordinateSpan span; // } MKCoordinateRegion;//中心點經緯度CLLocationCoordinate2D locationCoordinate2D;locationCoordinate2D.latitude=22.544349;locationCoordinate2D.longitude= 113.94787;//范圍比例尺MKCoordinateSpan coordinateSpan;//緯度coordinateSpan.latitudeDelta=0.05;//經度coordinateSpan.longitudeDelta=0.05;//設置顯示區域MKCoordinateRegion coordinateRegion;coordinateRegion.center=locationCoordinate2D;coordinateRegion.span=coordinateSpan;[self.mapView setRegion:coordinateRegion animated:YES]; // self.mapView.region=coordinateRegion;// typedef NS_ENUM(NSInteger, MKUserTrackingMode) { // MKUserTrackingModeNone = 0, // the user's location is not followed // MKUserTrackingModeFollow, // the map follows the user's location // MKUserTrackingModeFollowWithHeading, // the map follows the user's location and heading // }self.mapView.userTrackingMode=MKUserTrackingModeFollow;[self.view addSubview:self.mapView];UISegmentedControl *segmentedControl=[[UISegmentedControl alloc]initWithItems:@[@"普通地圖",@"衛星地圖",@"混合地圖"]];segmentedControl.selectedSegmentIndex=0;[segmentedControl addTarget:self action:@selector(selectSegmentIndex:) forControlEvents:UIControlEventValueChanged];self.navigationItem.titleView=segmentedControl;//定義大頭針類MyAnnotation *annotation=[[MyAnnotation alloc]initWithCoordinate:locationCoordinate2D title:@"主標題" subtitle:@"子標題"];annotation.image=[UIImage imageNamed:@"map.png"];[self.mapView addAnnotation:annotation];//定義長按手勢UILongPressGestureRecognizer *longPressGestureRecognizer=[[UILongPressGestureRecognizer alloc]initWithTarget:self action:@selector(LongTap:)];[self.mapView addGestureRecognizer:longPressGestureRecognizer];} -(void)LongTap:(UILongPressGestureRecognizer *)gestureRecongizer {if (gestureRecongizer.state==UIGestureRecognizerStateBegan) {NSLog(@"開始長按");//獲取mapview手指點擊位置CGPoint point=[gestureRecongizer locationInView:self.mapView];//轉化為經緯度CLLocationCoordinate2D coordinate2D=[self.mapView convertPoint:point toCoordinateFromView:self.mapView];//把當前位置轉為地理位置CLGeocoder *geocoder=[[CLGeocoder alloc]init];CLLocation *location=[[CLLocation alloc]initWithLatitude:coordinate2D.latitude longitude:coordinate2D.longitude];[geocoder reverseGeocodeLocation:location completionHandler:^(NSArray *placemarks, NSError *error) {if (error) {NSLog(@"失敗:%@",error);return ;}if (placemarks.count>0) {CLPlacemark *placemark=[placemarks firstObject];MyAnnotation *annotation=[[MyAnnotation alloc]initWithCoordinate:coordinate2D title:placemark.name subtitle:placemark.thoroughfare];annotation.image=[UIImage imageNamed:@"map.png"];NSLog(@"城市：%@",placemark.locality);NSLog(@"區：%@",placemark.subLocality);NSLog(@"省份：%@",placemark.administrativeArea);[self.mapView addAnnotation:annotation];}}];}else if(gestureRecongizer.state==UIGestureRecognizerStateChanged){NSLog(@"長按移動");}else if(gestureRecongizer.state==UIGestureRecognizerStateEnded){NSLog(@"長按結束");}} -(void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray *)locations {if (locations.count>0) {CLLocation *location=[locations firstObject];CLLocationCoordinate2D locationCoordinate2D =location.coordinate;[self.mapView setRegion:MKCoordinateRegionMake(locationCoordinate2D, self.mapView.region.span) animated:YES];NSLog(@"%lf ,%lf",locationCoordinate2D.longitude,locationCoordinate2D.longitude);MyAnnotation *annotation=[[MyAnnotation alloc]initWithCoordinate:locationCoordinate2D title:@"定位位置" subtitle:@"子標題"];annotation.image=[UIImage imageNamed:@"map.png"];[self.mapView addAnnotation:annotation];} }-(MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id<MKAnnotation>)annotation {//由于當前位置的標注也是一個大頭針，所以此時需要判斷，此代理方法返回nil使用默認大頭針視圖if ([annotation isKindOfClass:[MyAnnotation class]]) {static NSString *key=@"annotation";MKAnnotationView *annotationView=[self.mapView dequeueReusableAnnotationViewWithIdentifier:key];if (annotationView==nil) {annotationView=[[MKAnnotationView alloc]initWithAnnotation:annotation reuseIdentifier:key];//允許交互點擊annotationView.canShowCallout=true;//定義詳情視圖偏移量annotationView.calloutOffset=CGPointMake(0, 1);//詳情左視圖UIImageView *imgView=[[UIImageView alloc]initWithImage:[UIImage imageNamed:@"email.png"]];imgView.frame=CGRectMake(20, 20, 40, 40);annotationView.leftCalloutAccessoryView=imgView;UIButton *btn=[UIButton buttonWithType:UIButtonTypeInfoDark];btn.frame=CGRectMake(20, 20, 40, 40);annotationView.rightCalloutAccessoryView=btn;}//修改大頭針視圖//重新設置此類大頭針視圖的大頭針模型(因為有可能是從緩存池中取出來的，位置是放到緩存池時的位置)annotationView.annotation=annotation; // //設置大頭針圖片annotationView.image=((MyAnnotation *)annotation).image;return annotationView;}else{return nil;} }//大頭針選中 -(void)mapView:(MKMapView *)mapView didSelectAnnotationView:(MKAnnotationView *)view {MyAnnotation *annotation=view.annotation;NSLog(@"%@",annotation.title); } //定位失敗 -(void)locationManager:(CLLocationManager *)manager didFailWithError:(NSError *)error {NSLog(@"定位失敗");NSLog(@"%@",error); } - (void)selectSegmentIndex:(UISegmentedControl *)control {NSInteger index = control.selectedSegmentIndex;/*MKMapTypeStandard 普通地圖(標準地圖),MKMapTypeSatellite 衛星地圖,MKMapTypeHybrid 混合地圖*/MKMapType mapType;switch (index){//普通地圖case 0:mapType = MKMapTypeStandard;break;//衛星地圖case 1:mapType = MKMapTypeSatellite;break;//普通和衛星的混合地圖case 2:mapType = MKMapTypeHybrid;break;default:break;}//改變地圖類型self.mapView.mapType = mapType; }- (void)didReceiveMemoryWarning {[super didReceiveMemoryWarning];// Dispose of any resources that can be recreated. }@end

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